Some Acura RDX owners report experiencing a howling sound from under the vehicle after stopping and starting, particularly related to the brakes. This issue may be caused by grinding, squeaking, or squealing noises that indicate problems with the brake pads. Additionally, a repetitive clicking noise could suggest issues with the braking component system or a foreign object lodged next to the brake disc. Some owners also report hearing a hissing sound when pressing or releasing the brake pedal, which may indicate a leak in the brake booster. Furthermore, a howling sound from the rear of the car could signal a problem with the differential in rear-wheel-drive models. To resolve these concerns, it is advisable for owners to have a mechanic conduct a thorough inspection of the brake system to determine the exact cause of the howling sound and carry out any necessary repairs or replacements.
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